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From: Babu Moger <babu.moger@amd.com>
To: <corbet@lwn.net>, <reinette.chatre@intel.com>,
	<tglx@linutronix.de>, <mingo@redhat.com>, <bp@alien8.de>
Cc: <fenghua.yu@intel.com>, <dave.hansen@linux.intel.com>,
	<x86@kernel.org>, <hpa@zytor.com>, <paulmck@kernel.org>,
	<akpm@linux-foundation.org>, <quic_neeraju@quicinc.com>,
	<rdunlap@infradead.org>, <damien.lemoal@opensource.wdc.com>,
	<songmuchun@bytedance.com>, <peterz@infradead.org>,
	<jpoimboe@kernel.org>, <pbonzini@redhat.com>,
	<babu.moger@amd.com>, <chang.seok.bae@intel.com>,
	<pawan.kumar.gupta@linux.intel.com>, <jmattson@google.com>,
	<daniel.sneddon@linux.intel.com>, <sandipan.das@amd.com>,
	<tony.luck@intel.com>, <james.morse@arm.com>,
	<linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<bagasdotme@gmail.com>, <eranian@google.com>,
	<christophe.leroy@csgroup.eu>, <jarkko@kernel.org>,
	<adrian.hunter@intel.com>, <quic_jiles@quicinc.com>,
	<peternewman@google.com>
Subject: [PATCH v12 02/10] x86/resctrl: Simplify rftype flag definitions
Date: Tue, 10 Oct 2023 18:33:27 -0500	[thread overview]
Message-ID: <20231010233335.998475-3-babu.moger@amd.com> (raw)
In-Reply-To: <20231010233335.998475-1-babu.moger@amd.com>

The rftype flags are bitmaps used for adding files under resctrl
filesystem. Some of these bitmaps have one extra level of indirection
which is not necessary.

Make them all direct definition to be consistent and easier to read.

Signed-off-by: Babu Moger <babu.moger@amd.com>
Tested-by: Peter Newman <peternewman@google.com>
Reviewed-by: Peter Newman <peternewman@google.com>
Tested-by: Tan Shaopeng <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Tan Shaopeng <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
v12: No changes
---
 arch/x86/kernel/cpu/resctrl/internal.h | 9 +++------
 arch/x86/kernel/cpu/resctrl/rdtgroup.c | 6 +++++-
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/arch/x86/kernel/cpu/resctrl/internal.h b/arch/x86/kernel/cpu/resctrl/internal.h
index 85ceaf9a31ac..62767774810d 100644
--- a/arch/x86/kernel/cpu/resctrl/internal.h
+++ b/arch/x86/kernel/cpu/resctrl/internal.h
@@ -243,12 +243,9 @@ struct rdtgroup {
  */
 #define RFTYPE_INFO			BIT(0)
 #define RFTYPE_BASE			BIT(1)
-#define RF_CTRLSHIFT			4
-#define RF_MONSHIFT			5
-#define RF_TOPSHIFT			6
-#define RFTYPE_CTRL			BIT(RF_CTRLSHIFT)
-#define RFTYPE_MON			BIT(RF_MONSHIFT)
-#define RFTYPE_TOP			BIT(RF_TOPSHIFT)
+#define RFTYPE_CTRL			BIT(4)
+#define RFTYPE_MON			BIT(5)
+#define RFTYPE_TOP			BIT(6)
 #define RFTYPE_RES_CACHE		BIT(8)
 #define RFTYPE_RES_MB			BIT(9)
 #define RF_CTRL_INFO			(RFTYPE_INFO | RFTYPE_CTRL)
diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
index f0d163950969..7ddfa4b470e6 100644
--- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
+++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
@@ -3242,7 +3242,11 @@ static int mkdir_rdt_prepare(struct kernfs_node *parent_kn,
 		goto out_destroy;
 	}
 
-	files = RFTYPE_BASE | BIT(RF_CTRLSHIFT + rtype);
+	if (rtype == RDTCTRL_GROUP)
+		files = RFTYPE_BASE | RFTYPE_CTRL;
+	else
+		files = RFTYPE_BASE | RFTYPE_MON;
+
 	ret = rdtgroup_add_files(kn, files);
 	if (ret) {
 		rdt_last_cmd_puts("kernfs fill error\n");
-- 
2.34.1


  parent reply	other threads:[~2023-10-10 23:34 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-10 23:33 [PATCH v12 00/10] x86/resctrl: Miscellaneous resctrl features Babu Moger
2023-10-10 23:33 ` [PATCH v12 01/10] x86/resctrl: Add multiple tasks to the resctrl group at once Babu Moger
2023-10-10 23:33 ` Babu Moger [this message]
2023-10-10 23:33 ` [PATCH v12 03/10] x86/resctrl: Rename rftype flags for consistency Babu Moger
2023-10-10 23:33 ` [PATCH v12 04/10] x86/resctrl: Add comments on RFTYPE flags hierarchy Babu Moger
2023-10-11  0:56   ` Reinette Chatre
2023-10-11 16:57     ` Moger, Babu
2023-10-12 16:01       ` Reinette Chatre
2023-10-12 18:28         ` Moger, Babu
2023-10-10 23:33 ` [PATCH v12 05/10] x86/resctrl: Unwind the errors inside rdt_enable_ctx() Babu Moger
2023-10-10 23:33 ` [PATCH v12 06/10] x86/resctrl: Move default group file creation to mount Babu Moger
2023-10-10 23:33 ` [PATCH v12 07/10] x86/resctrl: Introduce "-o debug" mount option Babu Moger
2023-10-10 23:33 ` [PATCH v12 08/10] x86/resctrl: Display CLOSID for resource group Babu Moger
2023-10-10 23:33 ` [PATCH v12 09/10] x86/resctrl: Add support for the files for MON groups only Babu Moger
2023-10-12 16:02   ` Reinette Chatre
2023-10-12 18:29     ` Moger, Babu
2023-10-10 23:33 ` [PATCH v12 10/10] x86/resctrl: Display RMID of resource group Babu Moger
2023-10-12 16:02   ` Reinette Chatre
2023-10-12 22:06     ` Moger, Babu

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